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Boccia ( ) is a precision ball sport, similar to bocce, and related to bowls and pétanque. The name "boccia" is derived from the Latin word for 'boss' – ''ラテン語:bottia''.〔(History of Bocce )〕 The sport is contested at local, national and international levels, by athletes with more severe physical disabilities. It was originally designed to be played by people with cerebral palsy but now includes athletes with other severe disabilities affecting motor skills. In 1984 it became a Paralympic sport, and in 2008 was being practiced in over fifty countries worldwide. Boccia is governed by the Boccia International Sports Federation, (BISFed) and is one of only three Paralympic sports that have no counterpart in the Olympic program. ==About the game== Boccia can be played by individuals, pairs, or teams of three. All events are mixed gender. The aim of the game is to throw leather balls — coloured red or blue (which side gets which is determined by a coin toss) as close as they can to a white target ball, or jack. The jack is thrown first, then the first two regular balls are played, (first, the player who threw the jack then the opposing side), after which, the side furthest away from the jack goes next in an attempt to either get closer to the jack or knock the opposition's ball out of the way. In this fashion, each end will continue until one side has played all their balls, at which point, the opposing side will play their remaining balls. The balls can be moved with hands, feet, or, if the competitor's disability is severe, with an assistive device such as a ramp. At the end of each round, or end, the referee measures the distance of the balls closest to the jack, and awards points accordingly — one point for each ball that is closer to the jack than the opponent's closest ball. The team/player with the highest number of points at the end of play is the winner. If both teams have the same amount of points after all ends have been played, one additional end is played to determine a winner. The number of ends and balls in each end depends on the side makeup. Individual competition consists of four ends and six balls per player per end, whilst paired competition is four ends and six balls per pair per end (three per player). Team competition is six ends, and six balls per team per end (two per player). In pair and team events, a reserve player is allowed. Between ends a reserve can be substituted for a player during a game, but only one substitution per game is permitted. Boccia is played on a court measuring 12.5 × 6 m with 2 m of empty space around it. The surface of the court is flat and smooth. The throwing area is divided into six rectangular throwing boxes in which the athletes must stay completely within during play. On the court is a V-shaped line over which the jack must cross for the throw to be valid. At the end of the court is the ‘dead ball container’ which balls are put in if they are thrown outside of the time limit, out of the area of play or the athlete violates a rule during his or her throw. A cross marks the position where the jack must be placed if it touches or crosses the boundary line or in the case of a tie break. The balls themselves are made of leather and are slightly larger than a tennis ball, weighing approximately 275 grams and measuring 270 mm in circumference. They are available in different grades of softness and hardness. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「boccia」の詳細全文を読む スポンサード リンク
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